Question

At a certain point along the path in projectile motion, the projectile has a velocity v whose scalar components are vx = +30 m/s and vy = +40 m/s. As the projectile moves along the path, what would be its minimum speed?

a)30m/s
b) 40 m/s
c) (squareroot) (30m/s)^2 +(40m/s)^2=50 m/s
d) 0